Plugging a hole - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Welcome to Sailnet > SailNet FAQ
 Not a Member? 

SailNet FAQ This forum is specifically on the Sailnet Website and how to do certain things on the website. Please note - any other threads will be deleted.


Reply
 
LinkBack Thread Tools
  #1  
Old 12-31-2009
Member
 
Join Date: Aug 2009
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
inthesprings is on a distinguished road
Plugging a hole

Firstly, HAPPY NEW YEAR! and I hope everyone has a wonderful 2010 sailing season.

And on to the quesiton...how do I plug up the small (maybe dime sized) hole in my stern? It was for a fish finder I think. It's usually above the water line unless the boat is sailing hard on a port tack or in a following sea, in which case, well, I'm taking on water. Surprisingly (or maybe not) it took me awhile to figure out where the heck the water was getting in from, even though there's a hole in the stern (duh!). I think it was the little cover over the hole that threw me. Anyway, I got the Don Casey Sailboat Maintenance book for christmas which it seems would have me grinding a big beveled (12:1) depression around the hole and laying it up with epoxy and cloth. Can't to that from inside the hull because it's in a really tight spot, and I'm not into grinding up the hull on the outside and having to repair the gelcoat.

Can I just plug the thing with thickend epoxy or even marine tex (which is just thickened epoxy, isn't it)?

FWIW, the hull is solid fiberglass and 1/4 to 3/8" thick in this area.

Thanks!

-Shawn
__________________
In the Springs
Gardiners Bay, NY
1986 O'Day 31
Reply With Quote Share with Facebook
  #2  
Old 12-31-2009
canadianseamonkey's Avatar
Caribbean Surveyor
 
Join Date: Sep 2006
Location: Now in Sosua, DR
Posts: 511
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
canadianseamonkey is on a distinguished road
Myself, I would try the thickened epoxy first. I would even apply a second coat to make sure you've covered it completely. It should hold up fine and if it doesn't, then you have to go to plan B.
Reply With Quote Share with Facebook
  #3  
Old 12-31-2009
dantaden's Avatar
Sailor & Member
 
Join Date: Mar 2009
Location: Toronto
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
dantaden is on a distinguished road
Follow this weblink to West System where you can download the instruction manual to prep, fill and finish your holed area, + other stuff you may want to fix on-board.

Have fun and a great new year.

WEST SYSTEM | Use Guides
__________________
Dan, Celestial 48'
Toronto, sailing Lake Ontario & Thousand Islands
Reply With Quote Share with Facebook
  #4  
Old 12-31-2009
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,499
Thanks: 4
Thanked 83 Times in 76 Posts
Rep Power: 7
CalebD will become famous soon enough
Shawn,
One thing about gel-coat is that it is a polyester resin as opposed to an epoxy resin. You can apply epoxies over polyester surfaces but the reverse is not recommended. Check any can of gel-coats fine print to verify this. Epoxy has better adhesive qualities then polyester resins and therefore is the glue of choice for many repairs. Epoxy may adhere better but it does not hold up to UV as well as pigmented polyester resin (gel-coat).
So you could do your 12:1 bevel and fill it with polyester resin and cloth and then gel coat it, or your could fill it with thickened epoxy and simply paint it. Since we are talking about a dime sized hole the easiest thing to try first would the Marine-Tex (thickened, pigmented epoxy paste). If your hull is white then use the white Marine-Tex and it will look very similar to gel coat. For a larger, more invasive repair I would go by the book.
Happy New Years.
__________________
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

Everybody has one:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #5  
Old 12-31-2009
Member
 
Join Date: Aug 2009
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
inthesprings is on a distinguished road
Right, well thats good enough for me. I will try the Marine tex then....when it warms up a bit. Thanks.
__________________
In the Springs
Gardiners Bay, NY
1986 O'Day 31
Reply With Quote Share with Facebook
  #6  
Old 12-31-2009
orientalnc2010's Avatar
Senior Member
 
Join Date: Oct 2007
Location: oriental NC
Posts: 145
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
orientalnc2010 is on a distinguished road
Hi Shawn,
A simple fix might be to plug the hole with a stainless steel bolt, round head of the appropriate size with lots of sealant and use the clam shell to conceal it.
__________________
Regards,
Steve
PSC 31 #125
Ryoko
Oriental, NC
One of the two happiest days in a sailors life
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #7  
Old 01-04-2010
leland515's Avatar
Just a kid with a boat.
 
Join Date: Sep 2009
Location: Coastal Mississippi
Posts: 161
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 5
leland515 is on a distinguished road
Send a message via Yahoo to leland515
Quote:
Originally Posted by inthesprings View Post
Firstly, HAPPY NEW YEAR! and I hope everyone has a wonderful 2010 sailing season.

And on to the quesiton...how do I plug up the small (maybe dime sized) hole in my stern? It was for a fish finder I think. It's usually above the water line unless the boat is sailing hard on a port tack or in a following sea, in which case, well, I'm taking on water. Surprisingly (or maybe not) it took me awhile to figure out where the heck the water was getting in from, even though there's a hole in the stern (duh!). I think it was the little cover over the hole that threw me. Anyway, I got the Don Casey Sailboat Maintenance book for christmas which it seems would have me grinding a big beveled (12:1) depression around the hole and laying it up with epoxy and cloth. Can't to that from inside the hull because it's in a really tight spot, and I'm not into grinding up the hull on the outside and having to repair the gelcoat.

Can I just plug the thing with thickend epoxy or even marine tex (which is just thickened epoxy, isn't it)?

FWIW, the hull is solid fiberglass and 1/4 to 3/8" thick in this area.

Thanks!

-Shawn
Sand/Grind it all out until you have bare fiberglass, mix up some Marinetex, and stuff it in there
It's not a load bearing area, and it's very tiny.
You'll be fine
Reply With Quote Share with Facebook
  #8  
Old 01-04-2010
leland515's Avatar
Just a kid with a boat.
 
Join Date: Sep 2009
Location: Coastal Mississippi
Posts: 161
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 5
leland515 is on a distinguished road
Send a message via Yahoo to leland515
Quote:
Originally Posted by orientalnc2010 View Post
Hi Shawn,
A simple fix might be to plug the hole with a stainless steel bolt, round head of the appropriate size with lots of sealant and use the clam shell to conceal it.
Wow, would have never thought of that!
Reply With Quote Share with Facebook
  #9  
Old 01-17-2010
bychance's Avatar
Junior Member
 
Join Date: Aug 2007
Location: wilmington NC
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
bychance is on a distinguished road
patch a hole

I used simple mix in tube, underwater epoxy for a hole in bottom of my 24 hunter. Had the boat for several years, and never leaked//
Reply With Quote Share with Facebook
  #10  
Old 01-18-2010
hellosailor's Avatar
Plausible Deniability
 
Join Date: Apr 2006
Posts: 10,380
Thanks: 1
Thanked 72 Times in 70 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Or, you buy a short fat stainless carriage bolt, put some sealant under the head, and bolt it through the hole. That avoids the need to repaint the transom or otherwise blend the repair in. Add some Loctite or use two bolts, or at least a star washer, to make sure the nut inside doesn't work loose.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
PSC's on the hard for winter - Drain hole in rudder? MC1 Pacific Seacraft 5 11-06-2009 08:52 PM
Drilling and Filling Holes in Your Boat Sue & Larry Gear and Maintenance Articles 0 03-11-2003 07:00 PM
Oops! I drilled a hole in my hull! CaptGentry Gear & Maintenance 3 11-06-2002 03:23 PM


All times are GMT -4. The time now is 11:05 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012